018809ce

By: Michael Lynch <git@mtlynch.io>

Rename srcFileData test field to dstFileDataExpected

The field is never used as import source input (source bytes come from
tt.fsys). It is only read in the success assertion comparing against the
destination output, so dstFileDataExpected names its actual role and
matches the sibling errExpected field.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
configuredevShellbackendbackend-devcheck-bashcheck-frontendcheck-go-formattingcheck-go-test-packagescheck-trailing-newlinecheck-trailing-whitespacediagramdocker-imagee2e-testsgo-testsimport-from-tinybeanslint-sqllittle-momentslittle-moments-devx86_64-linux